Motive-power engine.



lNTERNAL COMBUSTION ENGINES,

Tra-ns mission mechanism.

No. 817,905. PATENTED APR. 17, 1906.

P. DANIEL.

MOTIVE POWER ENGINE.

APPLICATION FILED DEG.8. 1902. I

2 SHEETS-SHBET l.

I28. INTERNAL COMBUSTION ENGINES,

Transmission mechanism.

PATENTED APR. 17, 1906.

2 SHEETSSHEET 2.

P. DANIEL.

MOTIVE POWER. ENGINE.

APPLICATION FILED DBG.8.1902.

' result.

UNITED sTATEs PATENT oEEroE;

MOTlVE-POWER ENGINE.

To all whom it may concern.-

Be it known that I, PAUL DANIEL, a citizen of the Republic of France,and a resident of Levallois-Perret, near Paris, France, have inventedcertain new and useful Improvements in Motive Power Engines Actuated byPetrol or other Light Hydrocarbons, of which the following is aspecification.

My invention relates to motive-power engines actuated by petrol or otherhydrocar bon. and consisting of any number of sets of cylinders, eachset consisting of two coupled or twin cylinders. The engine may,however, consist of a single cylinder; but I prefer the types havin twoor four cylinders, and in the example escribed below and represented inthe accompanying drawings a type consisting of four cylinders is used.

In the accompanying drawings, Figure 1 is a transverse section of theengine, and Fig. 2 a longitudinal section.

The motor, which is a four-cycle one, is

characterized by the production of an impulse at each revolution. Thisresult is obtamed 1n the following manner: Each two pistons a are fittedwith a long transverse shaft 6, which passes through them and slides inguides formed in the sides of the cylinders c, Fig. 1. Each s'haftcarries two rollers (1,

arranged inside the pistons and which roll upon two elliptical cams e,fixed upon the driving-shaft f. If the shaft is turned, it will be seenthat the rollers acting upon the shafts b of the pistons force thelatter to move in the cylinders in the same way as an ordinary motor, soas to give a four-cycle Only since in an ellipse the vector radiuspasses through two maximums and w two minimums it is very evident thatduring a single revolution there will be two up and down movements ofthe pistons, these two movements producing the com lete fourcycle actionof the motor. It fol ows, therefore, that great simplicity is obtained.These cams in my improved motor are mounted directly upon thedrivingshaft f, which is straight. They operate the exhaust-gear g, Fig.1, carrying inside a roller which runs upon the cams, so as to reducethe friction to a minimum. This gear acts in turn upon levers h, Fig. 1,which are mounted upon the side of the case'i and which raise theexhaustvalves 7c, Fig. 1. The case containing the ignition device Z,Fig. 2, is also carried directly upon the driving-shaft, as mentionedabove.

Specification of Letters Patent.

Application filed December 8. 1902. Serial No. 134,354-

Patented April 17, 1906.

It can oscillate round this shaft, so that the ignition can either behastened or retarded. The cylinder and the covers are in a single pieceand are water-jacketed at m.

p represents electric igniter 'jlu' s. v

p represents the inlet-valves or t e cylinders, said valves beingarranged in chambers n, to which the explosive charge is fed throughinlet-pipe p.

The operation of the ellipses and rollers is" as follows: It was pointedout above thatan ellipse when it revolves forces the, ,corre spondingroller to roll on it, takinglwithj itr the piston in a straight strokefrom thf'botig tom to the top. The stroke from thetop .to thebottom.that is to say, the downstrok of the pistonis obtained, asexplained low, in two entirely dififerent ways.

.First. In work this downward stroke takes place automatically, the camsofthe valves of two twin cylinders/being sofixed that there is always anexp osion'in oneiof the cylinders at the time that thesecondcyh inder isdrawing in its char 'e.

Second. To obviate t e I inconvenience 8o t1on,"a

which will arise from a failure of.i nonexplosion, the breakage of a vave or the like, each set of cylinders is provided outside with two tubes1', closed at theirupper ends by an automatic inlet-valve r. and inwhich two 8 5 dle as, into which is screwed a transverse axis 95 mcarrying a small roller :19, which runs on a surface or track m providedon the elliptical cam. This roller insures the downstroke of the pistonat starting when the engine is at work, the downstroke taking placeautomat ically, as has been already explained.

T ese cylinders draw in a quano The cylinders are fixed upon a case orchamber, the ends of which carry bearings '12, in which thedriving-shaft f revolves, upon which the ellipses e are fixed. This casecontains the necessary oil for lubrification. The elliptical cams asthey revolve throw this oil over the cams which operate the valves uponthe bearings carrying the driving-shaft and finally upon the rollers andthe pistons, passing across the lower part of the cylinders, which haveopenings for the purpose, as shown at w in Fig. 1.

The fly-wheel a; is arranged outside the 5 case, and the variableignition device is situated at the other end of the shaft.

General cn8idemt'i0ns.It will be noticed I I rods prevents theinconvenience of oscillating parts, which are always very diflicult tobalance.

Third. That the suppression of the intermediate spindle for driving thevalves leads also to the suppression of all toothed gear in the motor. 1

Fourth. That the absence of a cranked shaft means a-very great economyin construction by doing away with a part very ex- 2 5 pensive anddifficult to make. Moreover, the substitution of a straight shaft, whichmay be made hollow, allows a considerable reduction in weight, that of acrank-shaft being considerable and its shape requiring very ogreatstrength to resist the different stresses to which it is exposed.

Fifth. That the substitution for the connegating-rod for a roller d,running freely on an ellipse '6, allows the automatic regulation in thepiston a'of the play which results from wear, which takes place on thetop of even the best-fitted connecting-rods and occasions shocks veryprejudicial to the proper working of the motor.

I claim- In an engine of the character described, the combination with aplurality of cylinders arranged side by side, pistons therein, a shaftpassing through the pistons and slidable within the cylinders, rollersarranged upon the shaft, one within eaohpiston, a drivingshaft andelliptical cams mounted as de: scribed upon the driving-shaft andbearing upon the rollers, two tubes arranged exteriorly of each set ofcylinders, an automatic inletvalve closing each tube at its upper end, apiston working in each tube, and rods carrying the pistons and mountedon the shaft which passes through the first-mentioned pistons, a spindle:11 carried by each of the power-pistons, a transverse shaft screwinginto each spindle and a roller mounted upon each of said transverseshafts, and running upon a bearing-surface on each elliptical cam in themanner described.

In testimony that I claim the foregoing I have hereunto set my hand this26th day of November, 1902.

PAUL DANIEL.

